Friday, 5 January 2018

Where do the lipids and proteins constituting the cell membrane get synthesised?

Answer : The lipids and proteins constituting the cell membrane get synthesised by the process of membrane biogenesis at smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER) respectively. Both are a large network of membrane-bound tubes and sheets. It looks like long tubules or round or oblong bags (vesicles). The SER helps in the manufacture of fat molecules, or lipids, important for cell function .The RER contains particles called ribosomes attached to its surface The ribosomes, which are present in all active cells, are the responsible for manufacturing of protein.The manufactured proteins are then sent to various places in the cell depending on need, using the ER (endoplasmic reticulum).

This is an answered question from Chapter 5 . THE FUNDAMENTAL UNIT OF LIFE of CBSE Class 9th Science